corbin



(No Model.) 2 Sheets-#Sheet 1.

I "'A. CORBIN, Jr. DISK HARROW ANDv SEEDER.

`N0.351,625. Patented 001;.26,1188,6.

'N. PETERS. Phumumgmpmr. whingum u, c.

(No Model.) 2 sheets-sheet 2.

, A. GORBIN, Jr. DISK HARROW AND SEBDER. No. 351,625.. Patented oet. 26.1886.

Ilm. .lm lll UNITED 'STATES AMASA CORBINLJR., OF GOUVERNEUR, NFVV YORK.

PATENT Fries.

DISK HARRow AND sl-:EDERv SPECIFICATION 'orrnug part of Letters Patent No. 351,625, dated October 26, 1886,

Application tiled February (18, 1856-. Serial No. 192,455. (No mod-el.)

.To all whom it may concern: Y

Be it known that I, AMAsA CORBIN, Jr., a

' citizen of the United States, residing at Gouverneur, in the county of St. Lawrence and State of New York, have invented certain new and useful Improvements in Disk Harrows and Seeders, of which the following is a'specitication, reference being had therein to the accompanying drawings.V

Y tion taken centrally of the harrow on line y y.

Fig. 3. Fig. 7 is a verticalsection enlarged on line z z, Fig. 1. Fig. 8 is a plan view of one of the seed-boxes, with the top removed. Fig. El is one of the bearings and thimbles enlarged. Fig. 10 is a modification of one part of the invention. Fig. 1l is adetail in sec- Fig. l2 is a partial vertical section of the gang-axle, a thimble, and its bearing near the inner end of the axle. Y.

One part of the invention relates to a novel combination of devices for adjusting the angles of the disk-gangs to the line of draft for the purpose of regulating the depth of cut of the disks. Other parts of the invention relate to an improved construction and combination of devices for connecting the diskgangs with the pole. Other parts of the invention relate to means for supporting the disk-gangs against the endwise thrust produced by the action of the disks when cutting. Other parts of the invention relate to devices for distributing the seed. Other parts of the invention relate to features of construction which will be hereinafter more fully explained. l

Similar letters of reference indicate like parts in all the figures.

A is the pole.

B B are the gang-axles, each preferably round in' cross-section and of substantially the saine diameter throughout, except that at its inner end it is provided with an expanded head, I), the adjacent faces of these heads being parti-l spherical, wherebyl they are adapted to rotate.I

`in contact with each other or with an interposed plate, evenwhen the disk-gangs are at different angles .to each other. .The inner ends of these gangs are connected to the lower end of a seat-standard, C, which is pivoted to the tongue. By preference I employ for this purpose links c c, connected at their forward ends to the lower end of the seat-standard or formed in one piece therewith, and at their rear ends to sleeves or boxings D, having forward projecting lugs d d, to which the rear end of the links are attached by pivots or bolts. In either case the seat-standard and links are substantially integral and rigid, ex-

cept that there willl Vbe more or less elasticity whenmade of a lar of iron of suitable size in cross-section. l

-E E are links, each pivoted at its forward end tothe tongue and connected at its rear end to the gangaxle by a similar boxing or bearing. F.

The disks are separated from each other by thimbles, each made in two parts. These thimble partsffare cylindrical, fit closely to the axle, and also lit closely within the bearings. The expanded outer ends of these thimble sections-are formed with inwardly-projecting flanges, which overlap the outer ends of the boxes or bearings f and tit closely thereto, so as to practically exclude dirt.

G is a foot-rest within convenient reach of the driver while riding in the seat c', and engages at its ends upon the outer pair of links.

H is a stop pivoted to the tongue and having its lower end in the form of a cam, which bears upon the upper side of the foot-rest, whereby pressure may be transferred from the tongue to the foot rest or bar G, and the outer ends of the disk-gang made to cut more deeply than they otherwisewould. When the adjustable stop is moved into the position shown in dotted lines, the outer ends of the disk-gangs are free to rise and fall relatively to the horizontal plane of the tongue. The' rear end of the tongue carries an arm, which projects beyond the inner ends ofthe diskgangs, and is provided with a downwardprojecting tooth or plow or a disk placed at a suitable angle to the line of draft, so as to assist in pulverizin'g the soil lat that point, and by anexamination of thedrawings it will be readily seen that when the gangs are in line' TOO with each other or thereabouts, as indicated in dotted lines, Fig. 5, the rear end of the tongue and this supplemental disk, tooth, or plow will be elevated so far that under ordinary circumstances it will not engage with the soil, or, at least, not to any objectionable depth.

I I are seed-boxes mounted upon standards t' i, which at their lower end rest in sockets formed for their. reception in the bearings.

rlhe seed may be distributed by means of the following devices:

J is a wire or rod mounted upon the upper face of the perforated bottom of the seed-box in such relation to a series of openings, j j, that as the rod is reciprocated its zigzag sections shall travel back ward and forward over these openings to facilitate the discharge of the seed.

Ii Ii are levers, each pivoted or loosely connected at its upper end to a sliding bar, L, and carrying at its lower end an antifriction roller, which engages with the outer face of a cani-plate, B', fixed to and rotating with the gang-axle.

'lhe outer end of the zigzag rod is pivoted to or otherwise connected with the lever, so that as the gangaxle and cam-plate revolve a reciprocating motion is imparted to the zigzag rod, there being a spiralspring or other spring at k to hold the anti-friction ioller in contact with the plate, except when the sliding bar L and upper end of the lever is moved inward to a suitable position, when the anti-friction wheel will be moved outward from contact with the cam-wheel, so that the lever and zigzag rod will remain at rest. A

The sliding bar L may be locked in either position shown by a pin, l, passing through either of a series of holes in the bar and into a hole in the seedbox, or by some other equiv aient device.

Upon the outer end of each seed-box there is a guide or steadying plate, M m, the lower forked end, mi, projecting horizontally, so as to embrace and pass on each side ofthe lever K, to support it against the forward or backward thrust produced by the engagement of the cani with the anti-friction roller.

In Fig. l() I have shown a modification in which the pivoted seat-support runs backward on a line substantially parallel with the tongue nearly to the line ofthe disks, from which point it is defiected slightly and coupled to a sleeve or bearing surrounding the axle between one of the part spherical heads and the inner disk. A short arm is pivoted to the seat-support and projects in an opposite direction, its rear end being secured to a corresponding coupling or bearing upon the other disk-gang. By means of these devices the gangs may be shifted from the position shown in full lines, Fig. l, to that shown in dotted lines, same gure, and vice versa.

Instead of supporting the lower ends of the seed-box standards in sockets east upon the thimbles or the bearings, their lower ends may seat is attached.

be forked so as to straddle and rest upon the thmbles. (Sec Fig. 1l.) In either construction I propose to maintain the seed-boxes in vertical positions or thereabouts by means ot' arms or braces g, projecting forward from the seed-boxes or standards and engaging with or fastened to Vthe links or t-he foot-rest. (See Fig. 5.)

I have shown the pivoted seat-support as consisting of two bars or rods pivoted about centrally to the tongue,with their upper ends in a substantially vertical position to receive the scat, their lower ends extending from the pivot downward and rearward to the bearings or couplings upon the gang-axles, so that the greater part of the weight of the rear end of the tongue and the drivers seat is by means of these pivoted seat-supports transferred directly to the inner ends of the gang-axles, so that this weight is utilized to thrust the disks into the soil, and ina measure resist the tendency of the inner ends ofthe disk-gangs to rise, which in this class of harrows is sometimes found to be objectionable, because of the end-thrust produced upon the axles by the disks.

C is a notched holding-bar pivoted at its lower end to the tongue, its upper end projecting between the two bars ot' the seat-sup port, and in such relation thereto that the notches receive successively a small pin, c', which is supported at its ends in the bars.

From the above description it will be readily understood that the angles of the diskgangs relative to the line of draft may be readily changed from the position shown in full lines to that shown in dotted lines, Figs. l and 5, or to any intermediate position, and may be locked in any oi' these positions.

It will also be understood that the weight of the driver while riding in the seat may be utilized for shifting or assisting in shifting the gangs from the position shown in full lines into or toward that shown in dotted lines.

In Fig. 10 I have shown a modification of the pivoted seatstandard, in which a single baris employed workingin aslotin the tongue, the lower end being' twisted a quarter of a turn, so that it lies in a plane at a right angle to the plane of the upper end, to which the This lower end, N, is bent a little to one side, and is at its extremerear end fastened to a coupling-sleeve, which surrounds a thimble on the inner end of one of the gang-axles; The attachment of the part N to the sleeve or coupling may be made by a bolt, n, fastened vertically through the standard, and through two lugs, d', which project forward from the sleeve, one above and one below t-he standard.

Pis a short arm pivoted at p to the seat support or standard nearits rear end, extending thence to a corresponding coupling or sleeve upon the other gang.

rlhe object of the pivot p is to prevent undue cramping or straining of parts when the gang-axles are being adj usted from one angle IOO Vthe opposite gang.

to another relative to the line 'of draft; or, when preferred, the rear ends of these partsl N P may be bent downward, as are the rear ends of the links E E, and connected to bearings substantially like those shown at F, and by au examination of the drawings, particularly Figs. l, 2, 6, and 9, it wil-l be understood Vthat the sockets e are flaring, being longer at their upper portions than at their lower portions, at which latter points they fit quite closelyto the links. I

Theobject in making each socket wider at top is to' permit the disk-gangs to vibrate in vertical planes (to conform to theinequalities ofthe ground over which they are drawn) without cramping of parts, the loosenefs of the pivotal connections between the rear end of the combined seat-standard and links C c c or N P and the lugs d d permitting the outer end of either gang to rise and fall with a corresponding reverse movement of its inner end without producing /a similar movement in Such construction also permits the disk-gangs to be locked in a common horizontal plane, or with their outer ends elevated or depressed by driving wedges into these ilaring sockets, one edge of each wedge engaging with an end wall of the socket, the

I.opposite edge engaging with the vertical face of the bent-down end of the link.

It will be understood that when the antifriction roller is engaged with the cam-wheel to vibrate the zigzag rod, the pivot which connects the upper end of the lever K with the sliding bar L serves as .a fulcrum, and that when the sliding bar is moved inward, to with-l draw the `anti-friction roller from the cam, and thus throw the zigzag J out of action, the said rod serves as a fulcrum, its inner end resting against the inner end of the seed-box, or being otherwise supportedagainst inwardthrust produced by the tension of the spring k.

Of course there should be a suitable sliding plate to cover the seed-holes j j, or other form of cut-off, to prevent the delivery of seed when desired.

- Q, is an adjustable scraper-bar carrying a series of scrapers, g q, of such form and position relative to the bar Q that when the parts are in a position the reverse of that shown in Figs. l and 11 the Scrapers will engagewith the inner concave faces of the disks to remove adhering dirt or other substance.

R It r are carriers, of which the outer forked ends, r, are adapted to embrace the scraperbars, which are conned therein by means of bolts or pins s s, passing through the forks and the bars or other equivalent devices. The shank or arm portions .are provided at their inner ends with sleeves It, which are mounted on the thimbles above referred to, and. may be provided with oil-holes, as indicated in Fig. l.

S are braces connecting the carriers with the standards t' t', or with the seed-boxes, as may be preferred, to assist in supporting the scrapers and their bars, or to the bearings F or thev standards t' i; or they may be connected to and supported from the seed-boxes; or, when the seed-boxes are omitted, these scraper-bars may be arranged in front of the disks and partially supported upon the links.l by which the diskgangs are drawn over or through'the ground.

As indicated in the drawings, (see Figs l and 11,) the Scrapers are out of contact with Athe disks, and are therefore inoperative; but,

in case the disks become clogged by adhering earth, I propose to remove the pins s s, take` the scraper-bars from the forked ends of the carriers It It r, and turn said bars over ahalfrevolution'on their own axes, and then replace themin the forks in such position that the Scrapers shall engage with the concave faces of the disks, after which the pins or bolts can be replaced and the Scrapers held in such positions as long as may be required. Although I have shown these scraper-bars turned into a position the reverse of that in which I propose'to place them when the Scrapers are in Contact with the disks, yet it is apparent that they need be turned only a quarter of a revolution, so that the Scrapers will be in vertical planes; orthe scraper-bars might have an additional series ofv bolt-holes, q', when the Scrapers could be removed from contact with' the disks by a longitudinal movement of the bars until the bolts s would pass through the holes in the forks and the holes g in the bars.

It will be understood that the carriers are stationarily attached to the disk-gangs-that is to say, they do not ordinarily have any movement relatively to the diskgangswhereas the scraper-bars are rotated about their axes in order to move the Scrapers into or out of engagement with the disks.

I do not claim herein any inventions which pertain to the devices for distributing the seed 'or to operating the seed-distributers from the gang-axles, or by means of the cam-wheels on the axles, reserving the right to claim such mattersinanother and concurrent application, which l propose to file as a division of this case.

What I claim isl. In a disk-harrow, the combination of a pole, two disk-gangs, draft devices connecting the inner ends of the disk-gangs separately to the pole, Vdraft devices connecting the outer ends of the disk-gangs separately to the pole, a pivoted seat-support connected at its lower end to the draft devices at the inner ends of the gang-axles, substantially as set forth.

2. In a disk-barrow, the combination of a pole, two independent disk-gangs having their inner ends disconnected from each other, flexible links connecting the inner ends of the diskgangswith the pole, flexible llinks connecting the outer ends of the disk-gangs to the pole, and a seat-support pivoted to the pole and having its lower end connected to the inner pair of links, substantially as set forth.

3. YIn a disk-barrow, the combination of a pole, two-disk-gangs connected to the pole so as to be drawn forward thereby, a pivoted seat- Support, and devices connecting the lower end ofthe seat-support with the inner ends of the disk-gangs, substantially as setforth.

4. Ina disleharrow, the combination of a pole, disk-gangs pivotally eonueeted to the pole, a pivoted seat-support, and devices eon necting the lower end of the seatsupport with the disk-gangs, whereby when the harrow is drawn 'forward the back ward thrust upon the disk-gangs is resisted by the weight of the driver, substantially as set forth.

5. Ina disk-barrow, the combination of a pole, disk gangs pivotally connected to the pole, a seat-support, and a l'ootrest for the drivensupported upon the links which connect the dislrgang` with the poles, substantially as set forth.

6. In a disk-barrow, the combination of a pole, two disk-gangs, links connecting; the inner ends ofthe diskgangs with thepoie, links connecting,` the outer ends of t-he disk-gangs with the pole, a bar arranged below the pole and supported upon the outer pair of links, and a movable stop between the pole and the bar, substantially as set forth.

7. In a disk11ar1ow, the combination of a pole, two disk-gangs connecting the inner ends ofthe dislegangs with the pole, links eonnect` ing the outer ends ot' the disk-gangs with the pole, a bar arranged below the pole and supported upon the outer pair of links, and an adjustable stop between the pole and the bnr, substantially as set forth.

8. In a disk-barrow, the combination of the gangaxle, the disks, and the spaeiugthimbles interposed between adjacent disks, each thiinble being made in two parts, separable near the center of the thimble, and provided with the inward projecting flanges f', substantially as set forth.

9. In a dislellarrow7 spaeing-thimbles interposed between adjacent disks, each thimble being made in two parts, in combination with a bearing formed of a single piece of metal mounted upon the central portions of the thimble, substantially as set forth.

10. In a disk-barrow, the combination of a pole, two independent disk-gangs having their inner ends disconnected from eaeh other and free to move forward and beek relatively to the pole, with a support interposed between the j inner ends of the gangs and connected with the pole, and adapted to receive upon its opposite sides the endwise thrust of the diskgangs, substantially as set forth.

Il, In a disli-ha1iow, the combination ofa pole, adjustable disk-gangs pivota'lly connected to the pole, a pivoted seat-support eonneeted at its lower end to the disk-gangs, and a locking mechanism connecting the pole with the seatsnpport to lock the inner ends of the gang against backward thrust, substantially as set forth.

I2. In a disk-barrow, the combination of a pole, two disk-gangs pivotally connected with the pole, disk or ytooth arranged in rear of the inner ends ofthe disk-gangs and connected direetly with the pole, so as to rise and fall therewith, substantially as set forth.

13. The combination, with the dislegang, ofthe sationarily-attached carriers and the serapers and scraperbars, the latter being adapted to be rotated about its axis to different positions, substantially as set forth.

let. 'The eoinbination, with the dislegangs, of the serapers and scraper bars and the forked carriers, substantially7 as set forth.

15. The combination, with. the disk-gang, of the scrapers and scraper-bars, and carriers provided with openings to permit the removal ofthe scraper-bars, substantially as set forth.

16, The combination, with thedisk-gaug, of the serapers and scraper-bars, the laterally projecting carriers, and braces to' assist in supporting the scraper-bars, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

AMASA CORBIN, Jn.

XVitnesses:

H. H. DOUBLEDAY, J. S. BAKKER. 

